Improvement in trimming card-clothing



UNITED STATES PATENT OEEICE.

E. B. IIOIVE, OF LOIVELL, MASSACHUSETTS.

IMPROVEMENT IN TRIMMING CARD-CLOTHING.

Specification forming part of Letters Patent No. 16,275, dated December23, 1856.

To all whom t may concern.-

Be it known that I, EDWARD B. Howe, of Lowell, in the county ofMiddlesex and Commonwealth of Massachusetts, have invented a new anduseful Improvement in Gaging, Straightening, and Cutting or TrimmingSheets of Card-Clothing; and I hereby declare that the followingspecification, in connection with the accompanying drawings andreferences thereon, constitute a lucid, clear, and exact description ofthe construction and use of the same.

In referring to said drawings, Figure 1 denotes a plan or top view; Fig.2, a front elevation of the same; Fig. 3, an end elevation of it. Iiig.4 denotes a transverse and vertical section on line A B, Fig. 1, withthe top elevated to receive the piece or sheet of cardclothing to betrimmed. Fig. 5 is an end view of the cutter or trimmer stockdisconnected from the machine; Fig. 6, a back side elevation of it.

The nature of my invention consist-s of gaging, straightening, andcutting both edges of card-clothing sheets at one operation, which maybeeifected with great rapidity and accuracy with my machine, which ishereinafter described.

To enable persons skilled in the art to which my invention appertains toconstruct and carryoutthe same, I will describe it as follows:

I construct a frame of wood. (Seen at A,

Figs. 2, 3, 4, and 6.) On the top of it I place and fasten a plate.(Seen at B, Figs. l, 2, 3, 4, and 6.) I construct a square bar, (seen atJ, Figs. 2, 4, and 6,) fastened to the rods E, which pass down throughholes formed in the top or plate B, and are connected to the arms D,which arms are secured to the turning shaft C, Figs. 2, 3, and 4, itbeing so iitted to the frame A as to turn freely therein. I thenconstruct two steel springs, I, Figs. 2 and 4, one end of which I secureto the under side of the plate B, while each of their opposite endspresses down upon the ends of the arms D and rods E, and of course thebar J, to which they are connected. The object of this downward pressureis to force the points "2', Figs. 4 and 6, into the leather to hold it,and also hold down the leather with sufficient force upon the plate B sothat it may be cnt or trimmed. A stand (seen at Y, Figs. 2 and 4) isfastened to the under side of the plate B,

Figs. l, 2, 3, 4, and G, to sustain the central part of the shaft C,Figs. 2, 3, and 4. I form an arm, (seen at F, Figs. 2 and 4,) and secureone of its ends to the shaft C, Figs. 2, 3, and 4, and the other end toa rod (seen at G, Figs. 2, 3, 4, and 6) which reaches down and isconnected to a treadle, (seen at H, Figs. 1, 3, and 4,) so that byplacing the foot upon this treadle and pressing it down it will raisethe bar J, as seen at Figs. 3,4, and 6, for the purpose of placing thepiece of the card-clothin g (seen at X, Figs. 1, 2, 3, 4, and 6) underit to be trimmed, the card-teeth (seen at IV, Figs. 3 and 4) beingplaced against the bar .I for holding it so that it may be trimmedparallel with the teeth to straighten them when they are laid into themachine to be held and trimmed.

It will be understood that my machine is designed to trim sheetcard-clothing, as seen in end view at NV and X, Figs. 3 and 4, and it isnecessary to straighten both edges of the leather parallel with the rowsof card-teeth set therein, and of exact and uniform width their wholelength, so that in placing the cardsheets in my machine care should betaken to press one of the rows of card-teeth against the bar J Figs. 3and 4, which constitutes its guide, as well as to press down theleather. Various widths of card-sheets are necessary, and my machine isso constructed as to be adjustable to any desired width.

I construct an adjustable swinging top of two parts, (seen at K, Figs.1, 2, 3, 4, and 6,) so that it may be made wider or narrower by means ofthe slotted plates Z, Figs. 1, 2, 3, and 6, and screws V and U, whichscrews hold these plates and are for adjusting the top K to any requiredwidth. The front part of the top K has a bar fastened to its under side(seen at C2, Figs. 1, 3, and 4) for holding the front edge of theleather while being trimmed by the downward pressure of the hand uponand movement of the cutting-tools N, as will be seen in Figs. 1, 2, 3,5, and 6. I then construct the tool-stock (seen at M, Figs. 1, 2, 3, 5,and 6) of two parts of like adj ustability as the swinging top K, Figs.1, 2, 3, 4, and G, by means of the plates Q, Figs. 1,2, 3, 5, and lf3,and screws R and S, Figs. l, 2, 3, 5, and G. This toolstock is fittednicely, so as to slide on the track or guide L on the upper side of theswinging top K. This track or way L imparts an exact guide to themovement of the'cutters -K by hand or power, meaning that the eutters NWill straighten, gage, out, and remove 4at a single operation thesurplus leather eontained in the card-sheets.

At P, Figs. l, 2, 3, 5, and 6, can be seen the handle which is securedto the tool-stock for pushing it forward and back by hand or power toperform the Cutting or trimming operation. The points or lower edges ofthe spur-cutters N pass down through the leather and slightly into theWood or top B, so as to be sure` to eut and separate the leather fortrimming, as will readily be understood.

What I elaim as my-nvention is- The arrangement of the adjustable guideand clamp K, with its adjustable tool-holder M, operated thereon, andthe guide-bar J, for guiding the card-clothing by the card-teeth Settherein, and the points yi in this bar J to hold the card Clothing Whileit is being trimmed on both edges at the same time, and parallel withthe card-teeth therein, these parts being arranged and operatedessentially in the manner and for the purposes set forth.

EDVARD B. HOWE.

Witnesses:

BENJ. ROBINSON, E. W, SCOTT.

